Solomon Grundy vs Thing
Solomon Grundy (The dumb version that Superman couldn't handle)
Big, lumbering, Terribly strong and durable. He took on the whole JLA in this form.
vs
Thing
Ben Grimm at his best. Heck I'd even go Spiky Thing to give him a boost in this one, so let's go with that.
Setting is in the middle of a major city with lots of stuff to break and throw at one another. (Chicago-sized or better).